Uncoupling device



W. 1. TANGERMAN.

UNCOUPLING DEVICE.

APPLICATION FILED MAR. 12, 1921*.

1,404,806, Patented Jan. 31, 1922.

.holes 10 and l1.

ing a circular opening therein through which I pass the cylindrical end portion 7 of the member 8, hereinafter termed a pin lever arm. The pin lever arm is preferably a forging and at one end is flattened to provide the relatively broad slab-like portion 9, which in turn is provided with two spaced Through the holes 10 and 11 I pass the hook-like end of what I lterm the uncoupling rod. The uncoupling rod, as here shown, is composed of a straight part 12 which is supported for rotation in brackets 13 and 14; carried by the car. One end 15 is bent at right angles to the portion 12 and forms a handle portion for swinging the uncoupling rod. The other end portion as stated is in the form of a hook formed of the spaced portions 16 and 17 connected by the curved portion 18 which follows the arc of a circle. The holes lO and 11 are slightly larger than the accommodated portions of the hook so that the pin lever arm may readily adjust itself thereon.

Operations-Io lift the pin 5 the handle 15 of the uncoupling rod is swung from the full line position shown in Fig. 3 to the dotted position. As the coupler moves back and forth in operation the pin lever arm readily Vadjusts itself on the hook supporting portion of the uncoupler rod, vfollowing the curved portion thereof. The cylindrical portion of the pin lever arm easily slides ack and forth through the eye of the coupler pin. A stop 1 9 prevents the uncoupling rod handle from swinging downwardly more than is desired.

The present construction has a number of advantages, among which may be noted the absolute freedom of movement, such as will eliminate anytendency to pull the pin when the coupler moves longitudinally either forwardly or backwardly. The safety construction preventing parts from flying in event the device-becomes broken thus obviates the necessity of providing a stop lug to prevent flying of broken parts. Thls, ofY

course, simplifies and cheapens the construction. There are only two parts tothe device which are securedl together without the use of any bolts or nuts and there is absolutely nothing that can loosen or get out of order. The construction is'such that much of the old equipment used in pin lifting can be utilized in the present construction. All

that is necessary to convertanold type Vpin lifter to the present one is to cut olf a piece Vof the lifter rod and then bend the end portion (indicated by dotted lines at 20- F ig. l) backwardly in the form of the hook previously described.

In the claims where the term coupler pin is used it shall be construed broadly to mean either a pin orother lock for engagement with knuckle.

The many advantages of my invention will be obvious to those skilled in this art without further comment, but since this disclosure will readily suggest to others modified constructions whereby the substantial objects and purposes of my inven- 7o tion. may be attained, I do not `wish to be Y limited to the specific construction herein shown and described, except only as may be necessary by limitations in the hereunto appended claims.

1. An uncoupling device embodying therein a pin lever arm and an operating rod therefor, one ofsaid members having a curved end portion and the other having openings in spaced portions thereof through which said curved portion of the otherV membe extends. i

2. An uncoupling device embodying therein apin lever arm and an operating rod, therefor, said pin lever arm having two spaced openings therein, and said operating rod havingra curvedend portion extending through said spaced openings.

3. An uncouplingdevice embodying therein a` pin lever arm and an operating rod therefor, saidpin lever arml having Vtwo spaced openings therein, and said operating rod having'a curved endportion extending through said spaced openings, said curved portion Vof the operating rod being smaller than said openings in order to permit Vfree relative movement of the parts. y

4. An uncoupling device embodying therein a pin lever armv and an operating rod therefor, said pin lever arm havinga 4llattened end portion provided with two spaced openings, landrsaid operating. arm having a curved end portion extending through said openings. f 105 In testimony whereof, I have hereunto set my hand, this 26th day of Januar 1921.

WILLIAM J. TANGE MAN. 

